The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 08, 1990
Filed:
Feb. 14, 1989
Guenter Kaes, Stuttgart, DE;
Alwin Stegmaier, Schwieberdingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A known valve controllable by means of an electromagnet includes at least one spring installed with prestressing, the prestressing of which must be within a relatively narrow tolerance range, if the valve is to function properly. Since then, when the valve has been assembled, the spring, which is subject to manufacturing tolerances, and other components subject to manufacturing tolerances, have been replaced with other components of different dimensions until a suitable prestressing was arrived at. The invention seeks to avoid this replacement work. The problem is solved by disposing an element that is displaceably installed so as to overcome frictional forces, and one end of a spring is supported on this element. One or more such elements are advantageously usable in multi-position magnetic valves, which for instance belong to vehicle brake systems and in particular to their anti-skid systems.